Convert AVI to MP4
Free Online Media Converter
Convert your AVI to MP4 in seconds. 100% free, secure, and works directly in your browser, no software to install, no account required.
Convert In Just 3 Easy Steps
Our lightning-fast converter works with all major formats. Just upload and go.
Upload
Drag & drop your AVI file or select one from your device.
Convert
Sit back as our high-speed tool converts your video.
Download
Instantly grab your new MP4 file—ready for sharing or editing.
What is AVI
AVI (Audio Video Interleave) is an older video format developed by Microsoft. While still playable on most devices, AVI lacks modern compression efficiency, leading to larger file sizes than MP4 or MKV. It does not support newer codecs like H.265, making it less ideal for high-definition content. However, its simplicity ensures basic compatibility with legacy systems.
What is MP4
MP4 (MPEG-4 Part 14) is the most popular video format for online sharing, streaming, and storage. It uses H.264 or H.265 video encoding with AAC audio, ensuring high compatibility across devices, social media platforms, and video players. MP4 files balance quality and compression, making them ideal for YouTube, Instagram, and professional video production. Its universal support makes it the go-to format for most users.
Need a different format?
We support a wide range of video, audio and image formats.
Check out the full list and start converting.
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